import { createServer } from "node:http";

// Simulador local: recibe JSON, no llama a un modelo.
const server = createServer(async (request, response) => {
  let body = "";
  for await (const chunk of request) body += chunk;
  const { input } = JSON.parse(body);
  response.writeHead(200, { "Content-Type": "application/json" });
  response.end(JSON.stringify({ text: "Solicitud recibida: " + input }));
});
await new Promise(resolve => server.listen(0, "127.0.0.1", resolve));
const { port } = server.address();

try {
  const response = await fetch("http://127.0.0.1:" + port, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ input: "Hola, IA" }),
    signal: AbortSignal.timeout(3000)
  });
  if (!response.ok) throw new Error("HTTP " + response.status);
  const data = await response.json();
  if (typeof data.text !== "string") throw new Error("Respuesta inválida");
  console.log(data.text);
} finally {
  server.closeAllConnections();
  await new Promise(resolve => server.close(resolve));
}